./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:13:18,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:13:18,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:13:18,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:13:18,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:13:18,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:13:18,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:13:18,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:13:18,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:13:18,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:13:18,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:13:18,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:13:18,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:13:18,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:13:18,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:13:18,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:13:18,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:13:18,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:13:18,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:13:18,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:13:18,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:13:18,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:13:18,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:13:18,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:13:18,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:13:18,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:13:18,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:13:18,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:13:18,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:13:18,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:13:18,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:13:18,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:13:18,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:13:18,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:13:18,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:13:18,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:13:18,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:13:18,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:13:18,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:13:18,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:13:18,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:13:18,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:13:18,793 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:13:18,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:13:18,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:13:18,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:13:18,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:13:18,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:13:18,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:13:18,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:13:18,795 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:13:18,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:13:18,796 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:13:18,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:13:18,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:13:18,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:13:18,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:13:18,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:13:18,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:13:18,810 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:13:18,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:13:18,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:13:18,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:13:18,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:13:18,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:13:18,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:13:18,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:13:18,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:13:18,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:13:18,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:13:18,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:13:18,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:13:18,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:13:18,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:13:18,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:13:18,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:13:18,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d [2021-12-07 01:13:19,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:13:19,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:13:19,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:13:19,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:13:19,044 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:13:19,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-12-07 01:13:19,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/data/402fbe66c/5c7f9cdcdb2542c1947c92616a987a2b/FLAGeb981c3e9 [2021-12-07 01:13:19,569 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:13:19,570 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-12-07 01:13:19,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/data/402fbe66c/5c7f9cdcdb2542c1947c92616a987a2b/FLAGeb981c3e9 [2021-12-07 01:13:20,066 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/data/402fbe66c/5c7f9cdcdb2542c1947c92616a987a2b [2021-12-07 01:13:20,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:13:20,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:13:20,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:13:20,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:13:20,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:13:20,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580a36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20, skipping insertion in model container [2021-12-07 01:13:20,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:13:20,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:13:20,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2021-12-07 01:13:20,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:13:20,290 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:13:20,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2021-12-07 01:13:20,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:13:20,368 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:13:20,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20 WrapperNode [2021-12-07 01:13:20,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:13:20,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:13:20,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:13:20,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:13:20,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,419 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 283 [2021-12-07 01:13:20,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:13:20,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:13:20,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:13:20,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:13:20,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:13:20,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:13:20,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:13:20,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:13:20,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (1/1) ... [2021-12-07 01:13:20,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:13:20,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:13:20,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:13:20,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:13:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:13:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-07 01:13:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-07 01:13:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-07 01:13:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-07 01:13:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-07 01:13:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-07 01:13:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-07 01:13:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-07 01:13:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-07 01:13:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-07 01:13:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:13:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-07 01:13:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-07 01:13:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:13:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:13:20,575 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:13:20,576 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:13:20,839 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:13:20,848 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:13:20,848 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 01:13:20,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:13:20 BoogieIcfgContainer [2021-12-07 01:13:20,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:13:20,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:13:20,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:13:20,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:13:20,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:13:20" (1/3) ... [2021-12-07 01:13:20,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6b7f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:13:20, skipping insertion in model container [2021-12-07 01:13:20,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:13:20" (2/3) ... [2021-12-07 01:13:20,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6b7f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:13:20, skipping insertion in model container [2021-12-07 01:13:20,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:13:20" (3/3) ... [2021-12-07 01:13:20,860 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2021-12-07 01:13:20,865 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:13:20,866 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:13:20,917 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:13:20,924 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:13:20,924 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:13:20,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-07 01:13:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-07 01:13:20,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:20,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:20,952 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:20,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:20,958 INFO L85 PathProgramCache]: Analyzing trace with hash -644164364, now seen corresponding path program 1 times [2021-12-07 01:13:20,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:20,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353057110] [2021-12-07 01:13:20,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:20,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:21,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:21,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353057110] [2021-12-07 01:13:21,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353057110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:21,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:21,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:13:21,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882945895] [2021-12-07 01:13:21,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:21,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:13:21,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:21,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:13:21,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:13:21,211 INFO L87 Difference]: Start difference. First operand has 87 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:13:21,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:21,246 INFO L93 Difference]: Finished difference Result 166 states and 227 transitions. [2021-12-07 01:13:21,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:13:21,248 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-07 01:13:21,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:21,258 INFO L225 Difference]: With dead ends: 166 [2021-12-07 01:13:21,258 INFO L226 Difference]: Without dead ends: 78 [2021-12-07 01:13:21,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:13:21,266 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:21,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:13:21,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-12-07 01:13:21,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-12-07 01:13:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 69 states have internal predecessors, (82), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-07 01:13:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2021-12-07 01:13:21,312 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 19 [2021-12-07 01:13:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:21,312 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2021-12-07 01:13:21,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:13:21,313 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2021-12-07 01:13:21,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-07 01:13:21,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:21,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:21,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:13:21,316 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:21,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:21,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1321297108, now seen corresponding path program 1 times [2021-12-07 01:13:21,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:21,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056578976] [2021-12-07 01:13:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:21,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:21,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:21,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056578976] [2021-12-07 01:13:21,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056578976] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:21,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:21,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:13:21,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979905520] [2021-12-07 01:13:21,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:21,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:13:21,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:21,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:13:21,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:13:21,392 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:13:21,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:21,409 INFO L93 Difference]: Finished difference Result 121 states and 157 transitions. [2021-12-07 01:13:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:13:21,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-07 01:13:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:21,411 INFO L225 Difference]: With dead ends: 121 [2021-12-07 01:13:21,412 INFO L226 Difference]: Without dead ends: 69 [2021-12-07 01:13:21,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:13:21,414 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 13 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:21,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 159 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:13:21,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-07 01:13:21,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-12-07 01:13:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 63 states have internal predecessors, (75), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-07 01:13:21,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2021-12-07 01:13:21,426 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 20 [2021-12-07 01:13:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:21,427 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2021-12-07 01:13:21,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:13:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2021-12-07 01:13:21,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-07 01:13:21,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:21,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:21,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:13:21,429 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:21,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:21,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2055869510, now seen corresponding path program 1 times [2021-12-07 01:13:21,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:21,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468862519] [2021-12-07 01:13:21,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:21,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:21,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:21,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468862519] [2021-12-07 01:13:21,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468862519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:21,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:21,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:13:21,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710340191] [2021-12-07 01:13:21,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:21,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:13:21,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:21,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:13:21,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:13:21,496 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:13:21,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:21,524 INFO L93 Difference]: Finished difference Result 131 states and 172 transitions. [2021-12-07 01:13:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:13:21,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-07 01:13:21,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:21,526 INFO L225 Difference]: With dead ends: 131 [2021-12-07 01:13:21,526 INFO L226 Difference]: Without dead ends: 69 [2021-12-07 01:13:21,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:13:21,529 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:21,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 87 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:13:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-07 01:13:21,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-12-07 01:13:21,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 63 states have internal predecessors, (74), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-07 01:13:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2021-12-07 01:13:21,542 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 25 [2021-12-07 01:13:21,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:21,542 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-12-07 01:13:21,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:13:21,543 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2021-12-07 01:13:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-07 01:13:21,544 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:21,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:21,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:13:21,545 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:21,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:21,546 INFO L85 PathProgramCache]: Analyzing trace with hash 86695610, now seen corresponding path program 1 times [2021-12-07 01:13:21,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:21,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941155713] [2021-12-07 01:13:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:21,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:13:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:21,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:21,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941155713] [2021-12-07 01:13:21,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941155713] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:21,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:21,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:13:21,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45344898] [2021-12-07 01:13:21,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:21,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:13:21,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:21,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:13:21,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:13:21,632 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:13:21,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:21,762 INFO L93 Difference]: Finished difference Result 195 states and 249 transitions. [2021-12-07 01:13:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:13:21,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2021-12-07 01:13:21,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:21,764 INFO L225 Difference]: With dead ends: 195 [2021-12-07 01:13:21,764 INFO L226 Difference]: Without dead ends: 133 [2021-12-07 01:13:21,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:13:21,766 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 159 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:21,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 255 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-12-07 01:13:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 127. [2021-12-07 01:13:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 111 states have internal predecessors, (131), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2021-12-07 01:13:21,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 156 transitions. [2021-12-07 01:13:21,781 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 156 transitions. Word has length 35 [2021-12-07 01:13:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:21,782 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 156 transitions. [2021-12-07 01:13:21,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:13:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 156 transitions. [2021-12-07 01:13:21,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-07 01:13:21,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:21,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:21,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 01:13:21,783 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:21,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash 585874736, now seen corresponding path program 1 times [2021-12-07 01:13:21,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:21,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419565667] [2021-12-07 01:13:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:21,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:13:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:13:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:21,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:21,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419565667] [2021-12-07 01:13:21,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419565667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:21,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:21,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:13:21,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922354226] [2021-12-07 01:13:21,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:21,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:13:21,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:21,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:13:21,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:13:21,851 INFO L87 Difference]: Start difference. First operand 127 states and 156 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:13:22,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:22,015 INFO L93 Difference]: Finished difference Result 376 states and 485 transitions. [2021-12-07 01:13:22,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:13:22,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-12-07 01:13:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:22,019 INFO L225 Difference]: With dead ends: 376 [2021-12-07 01:13:22,019 INFO L226 Difference]: Without dead ends: 256 [2021-12-07 01:13:22,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:13:22,022 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 203 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:22,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 349 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:22,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-12-07 01:13:22,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 208. [2021-12-07 01:13:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 169 states have (on average 1.272189349112426) internal successors, (215), 180 states have internal predecessors, (215), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2021-12-07 01:13:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 261 transitions. [2021-12-07 01:13:22,051 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 261 transitions. Word has length 41 [2021-12-07 01:13:22,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:22,051 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 261 transitions. [2021-12-07 01:13:22,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:13:22,052 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 261 transitions. [2021-12-07 01:13:22,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-07 01:13:22,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:22,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:22,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:13:22,054 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:22,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:22,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1714947854, now seen corresponding path program 1 times [2021-12-07 01:13:22,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:22,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135828432] [2021-12-07 01:13:22,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:22,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:13:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:13:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:22,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:22,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135828432] [2021-12-07 01:13:22,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135828432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:22,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:22,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:13:22,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21602953] [2021-12-07 01:13:22,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:22,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:13:22,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:13:22,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:13:22,124 INFO L87 Difference]: Start difference. First operand 208 states and 261 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:13:22,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:22,251 INFO L93 Difference]: Finished difference Result 407 states and 514 transitions. [2021-12-07 01:13:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:13:22,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-12-07 01:13:22,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:22,255 INFO L225 Difference]: With dead ends: 407 [2021-12-07 01:13:22,255 INFO L226 Difference]: Without dead ends: 206 [2021-12-07 01:13:22,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:13:22,257 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 133 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:22,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 303 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-12-07 01:13:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2021-12-07 01:13:22,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 165 states have (on average 1.2545454545454546) internal successors, (207), 176 states have internal predecessors, (207), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2021-12-07 01:13:22,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 253 transitions. [2021-12-07 01:13:22,279 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 253 transitions. Word has length 41 [2021-12-07 01:13:22,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:22,279 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 253 transitions. [2021-12-07 01:13:22,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:13:22,279 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 253 transitions. [2021-12-07 01:13:22,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-07 01:13:22,281 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:22,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:22,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:13:22,281 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:22,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:22,282 INFO L85 PathProgramCache]: Analyzing trace with hash -318970168, now seen corresponding path program 1 times [2021-12-07 01:13:22,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:22,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131942657] [2021-12-07 01:13:22,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:22,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:13:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 01:13:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:13:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:22,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:22,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131942657] [2021-12-07 01:13:22,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131942657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:22,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:22,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:13:22,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532084542] [2021-12-07 01:13:22,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:22,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:13:22,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:22,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:13:22,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:13:22,350 INFO L87 Difference]: Start difference. First operand 204 states and 253 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 01:13:22,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:22,541 INFO L93 Difference]: Finished difference Result 465 states and 577 transitions. [2021-12-07 01:13:22,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:13:22,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2021-12-07 01:13:22,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:22,544 INFO L225 Difference]: With dead ends: 465 [2021-12-07 01:13:22,544 INFO L226 Difference]: Without dead ends: 268 [2021-12-07 01:13:22,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:13:22,546 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 156 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:22,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 353 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:22,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-12-07 01:13:22,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 242. [2021-12-07 01:13:22,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 198 states have (on average 1.2424242424242424) internal successors, (246), 213 states have internal predecessors, (246), 19 states have call successors, (19), 18 states have call predecessors, (19), 24 states have return successors, (33), 19 states have call predecessors, (33), 19 states have call successors, (33) [2021-12-07 01:13:22,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 298 transitions. [2021-12-07 01:13:22,570 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 298 transitions. Word has length 45 [2021-12-07 01:13:22,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:22,571 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 298 transitions. [2021-12-07 01:13:22,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 01:13:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 298 transitions. [2021-12-07 01:13:22,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-07 01:13:22,573 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:22,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:22,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:13:22,573 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:22,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:22,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1598724404, now seen corresponding path program 1 times [2021-12-07 01:13:22,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:22,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383144417] [2021-12-07 01:13:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:22,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:13:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 01:13:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:13:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:22,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:22,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383144417] [2021-12-07 01:13:22,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383144417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:22,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:22,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:13:22,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868026716] [2021-12-07 01:13:22,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:22,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:13:22,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:22,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:13:22,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:13:22,652 INFO L87 Difference]: Start difference. First operand 242 states and 298 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-07 01:13:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:22,872 INFO L93 Difference]: Finished difference Result 266 states and 323 transitions. [2021-12-07 01:13:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-07 01:13:22,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2021-12-07 01:13:22,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:22,874 INFO L225 Difference]: With dead ends: 266 [2021-12-07 01:13:22,874 INFO L226 Difference]: Without dead ends: 264 [2021-12-07 01:13:22,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-12-07 01:13:22,875 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 190 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:22,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 415 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:22,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-12-07 01:13:22,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 242. [2021-12-07 01:13:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 198 states have (on average 1.2272727272727273) internal successors, (243), 213 states have internal predecessors, (243), 19 states have call successors, (19), 18 states have call predecessors, (19), 24 states have return successors, (33), 19 states have call predecessors, (33), 19 states have call successors, (33) [2021-12-07 01:13:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 295 transitions. [2021-12-07 01:13:22,891 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 295 transitions. Word has length 45 [2021-12-07 01:13:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:22,891 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 295 transitions. [2021-12-07 01:13:22,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-07 01:13:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 295 transitions. [2021-12-07 01:13:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-07 01:13:22,892 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:22,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:22,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:13:22,892 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:22,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:22,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1519506341, now seen corresponding path program 1 times [2021-12-07 01:13:22,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:22,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188015735] [2021-12-07 01:13:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:22,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:13:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 01:13:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:22,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:22,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188015735] [2021-12-07 01:13:22,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188015735] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:22,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:22,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:13:22,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082694324] [2021-12-07 01:13:22,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:22,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:13:22,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:22,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:13:22,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:13:22,943 INFO L87 Difference]: Start difference. First operand 242 states and 295 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-07 01:13:23,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:23,150 INFO L93 Difference]: Finished difference Result 473 states and 601 transitions. [2021-12-07 01:13:23,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:13:23,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2021-12-07 01:13:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:23,153 INFO L225 Difference]: With dead ends: 473 [2021-12-07 01:13:23,153 INFO L226 Difference]: Without dead ends: 316 [2021-12-07 01:13:23,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:13:23,155 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 171 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:23,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 472 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:23,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-12-07 01:13:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 311. [2021-12-07 01:13:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 254 states have (on average 1.2244094488188977) internal successors, (311), 271 states have internal predecessors, (311), 26 states have call successors, (26), 25 states have call predecessors, (26), 30 states have return successors, (51), 27 states have call predecessors, (51), 26 states have call successors, (51) [2021-12-07 01:13:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 388 transitions. [2021-12-07 01:13:23,184 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 388 transitions. Word has length 47 [2021-12-07 01:13:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:23,185 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 388 transitions. [2021-12-07 01:13:23,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-07 01:13:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 388 transitions. [2021-12-07 01:13:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-07 01:13:23,186 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:23,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:23,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 01:13:23,186 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:23,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1292286815, now seen corresponding path program 1 times [2021-12-07 01:13:23,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:23,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624034493] [2021-12-07 01:13:23,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:23,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:13:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 01:13:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:23,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:23,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624034493] [2021-12-07 01:13:23,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624034493] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:23,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:23,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:13:23,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499834669] [2021-12-07 01:13:23,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:23,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:13:23,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:23,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:13:23,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:13:23,242 INFO L87 Difference]: Start difference. First operand 311 states and 388 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-07 01:13:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:23,381 INFO L93 Difference]: Finished difference Result 623 states and 787 transitions. [2021-12-07 01:13:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:13:23,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2021-12-07 01:13:23,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:23,385 INFO L225 Difference]: With dead ends: 623 [2021-12-07 01:13:23,385 INFO L226 Difference]: Without dead ends: 319 [2021-12-07 01:13:23,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:13:23,387 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 134 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:23,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 357 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:23,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-12-07 01:13:23,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 311. [2021-12-07 01:13:23,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 254 states have (on average 1.2165354330708662) internal successors, (309), 271 states have internal predecessors, (309), 26 states have call successors, (26), 25 states have call predecessors, (26), 30 states have return successors, (51), 27 states have call predecessors, (51), 26 states have call successors, (51) [2021-12-07 01:13:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 386 transitions. [2021-12-07 01:13:23,416 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 386 transitions. Word has length 47 [2021-12-07 01:13:23,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:23,417 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 386 transitions. [2021-12-07 01:13:23,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-07 01:13:23,417 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 386 transitions. [2021-12-07 01:13:23,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-07 01:13:23,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:23,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:23,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 01:13:23,419 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:23,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:23,419 INFO L85 PathProgramCache]: Analyzing trace with hash -701857891, now seen corresponding path program 1 times [2021-12-07 01:13:23,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:23,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145846658] [2021-12-07 01:13:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:23,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:13:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 01:13:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:23,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:23,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145846658] [2021-12-07 01:13:23,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145846658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:23,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:23,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:13:23,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017349229] [2021-12-07 01:13:23,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:23,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:13:23,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:23,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:13:23,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:13:23,487 INFO L87 Difference]: Start difference. First operand 311 states and 386 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:13:23,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:23,634 INFO L93 Difference]: Finished difference Result 561 states and 704 transitions. [2021-12-07 01:13:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:13:23,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2021-12-07 01:13:23,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:23,637 INFO L225 Difference]: With dead ends: 561 [2021-12-07 01:13:23,637 INFO L226 Difference]: Without dead ends: 257 [2021-12-07 01:13:23,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:13:23,639 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 217 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:23,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 283 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:23,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-12-07 01:13:23,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2021-12-07 01:13:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 206 states have (on average 1.2087378640776698) internal successors, (249), 219 states have internal predecessors, (249), 23 states have call successors, (23), 22 states have call predecessors, (23), 25 states have return successors, (40), 23 states have call predecessors, (40), 23 states have call successors, (40) [2021-12-07 01:13:23,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 312 transitions. [2021-12-07 01:13:23,659 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 312 transitions. Word has length 47 [2021-12-07 01:13:23,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:23,660 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 312 transitions. [2021-12-07 01:13:23,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:13:23,660 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 312 transitions. [2021-12-07 01:13:23,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-07 01:13:23,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:23,662 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:23,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 01:13:23,662 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:23,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2145897221, now seen corresponding path program 1 times [2021-12-07 01:13:23,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:23,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155376900] [2021-12-07 01:13:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:23,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:13:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:13:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:13:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 01:13:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:13:23,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:23,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155376900] [2021-12-07 01:13:23,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155376900] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:13:23,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146204950] [2021-12-07 01:13:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:23,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:13:23,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:13:23,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:13:23,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:13:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:23,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 01:13:23,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:13:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:13:24,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:13:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:13:24,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146204950] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:13:24,270 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:13:24,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2021-12-07 01:13:24,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632167851] [2021-12-07 01:13:24,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:13:24,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:13:24,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:24,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:13:24,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:13:24,273 INFO L87 Difference]: Start difference. First operand 255 states and 312 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 01:13:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:24,615 INFO L93 Difference]: Finished difference Result 590 states and 758 transitions. [2021-12-07 01:13:24,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-07 01:13:24,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2021-12-07 01:13:24,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:24,619 INFO L225 Difference]: With dead ends: 590 [2021-12-07 01:13:24,619 INFO L226 Difference]: Without dead ends: 383 [2021-12-07 01:13:24,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 175 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2021-12-07 01:13:24,622 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 242 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:24,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 564 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:13:24,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-12-07 01:13:24,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 350. [2021-12-07 01:13:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 280 states have (on average 1.2107142857142856) internal successors, (339), 298 states have internal predecessors, (339), 33 states have call successors, (33), 32 states have call predecessors, (33), 36 states have return successors, (60), 31 states have call predecessors, (60), 33 states have call successors, (60) [2021-12-07 01:13:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 432 transitions. [2021-12-07 01:13:24,649 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 432 transitions. Word has length 82 [2021-12-07 01:13:24,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:24,650 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 432 transitions. [2021-12-07 01:13:24,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 01:13:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 432 transitions. [2021-12-07 01:13:24,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-07 01:13:24,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:24,652 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:24,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:13:24,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-07 01:13:24,857 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:24,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1100274715, now seen corresponding path program 2 times [2021-12-07 01:13:24,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:24,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971342251] [2021-12-07 01:13:24,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:24,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:24,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:13:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:24,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:13:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:24,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:13:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:24,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 01:13:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:24,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 01:13:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:13:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-07 01:13:25,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:25,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971342251] [2021-12-07 01:13:25,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971342251] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:13:25,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633280064] [2021-12-07 01:13:25,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:13:25,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:13:25,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:13:25,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:13:25,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 01:13:25,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:13:25,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:13:25,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 01:13:25,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:13:25,342 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-07 01:13:25,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:13:25,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633280064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:25,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:13:25,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-12-07 01:13:25,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318384492] [2021-12-07 01:13:25,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:25,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:13:25,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:25,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:13:25,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:13:25,345 INFO L87 Difference]: Start difference. First operand 350 states and 432 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-07 01:13:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:25,555 INFO L93 Difference]: Finished difference Result 931 states and 1192 transitions. [2021-12-07 01:13:25,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:13:25,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 117 [2021-12-07 01:13:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:25,561 INFO L225 Difference]: With dead ends: 931 [2021-12-07 01:13:25,561 INFO L226 Difference]: Without dead ends: 628 [2021-12-07 01:13:25,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-12-07 01:13:25,564 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 242 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:25,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 476 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2021-12-07 01:13:25,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 567. [2021-12-07 01:13:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 454 states have (on average 1.2048458149779735) internal successors, (547), 479 states have internal predecessors, (547), 54 states have call successors, (54), 53 states have call predecessors, (54), 58 states have return successors, (95), 50 states have call predecessors, (95), 54 states have call successors, (95) [2021-12-07 01:13:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 696 transitions. [2021-12-07 01:13:25,607 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 696 transitions. Word has length 117 [2021-12-07 01:13:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:25,607 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 696 transitions. [2021-12-07 01:13:25,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-07 01:13:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 696 transitions. [2021-12-07 01:13:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-07 01:13:25,610 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:13:25,610 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:25,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 01:13:25,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-07 01:13:25,813 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:13:25,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:13:25,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1976293721, now seen corresponding path program 1 times [2021-12-07 01:13:25,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:13:25,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722812202] [2021-12-07 01:13:25,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:13:25,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:13:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 01:13:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-07 01:13:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:13:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-07 01:13:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-07 01:13:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:13:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:13:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:13:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-07 01:13:25,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:13:25,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722812202] [2021-12-07 01:13:25,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722812202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:13:25,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:13:25,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:13:25,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253874862] [2021-12-07 01:13:25,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:13:25,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:13:25,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:13:25,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:13:25,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:13:25,908 INFO L87 Difference]: Start difference. First operand 567 states and 696 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:13:26,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:13:26,047 INFO L93 Difference]: Finished difference Result 777 states and 943 transitions. [2021-12-07 01:13:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:13:26,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 117 [2021-12-07 01:13:26,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:13:26,048 INFO L225 Difference]: With dead ends: 777 [2021-12-07 01:13:26,048 INFO L226 Difference]: Without dead ends: 0 [2021-12-07 01:13:26,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:13:26,051 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 115 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:13:26,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 306 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:13:26,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-07 01:13:26,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-07 01:13:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:13:26,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-07 01:13:26,053 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2021-12-07 01:13:26,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:13:26,053 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:13:26,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 01:13:26,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-07 01:13:26,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-07 01:13:26,056 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 01:13:26,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 01:13:26,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-07 01:13:27,392 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2021-12-07 01:13:27,392 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2021-12-07 01:13:27,392 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 487 498) the Hoare annotation is: true [2021-12-07 01:13:27,392 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 487 498) no Hoare annotation was computed. [2021-12-07 01:13:27,392 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 487 498) no Hoare annotation was computed. [2021-12-07 01:13:27,392 INFO L854 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,392 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2021-12-07 01:13:27,392 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-12-07 01:13:27,393 INFO L854 garLoopResultBuilder]: At program point L536(lines 531 539) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (and (<= 2 ~waterLevel~0) .cse5 (<= 2 |timeShift_getWaterLevel_#res#1|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse1 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse2 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse4) (or .cse0 (and .cse2 .cse5) .cse1 (not (<= 1 |old(~waterLevel~0)|)) .cse3)))) [2021-12-07 01:13:27,393 INFO L854 garLoopResultBuilder]: At program point L821(lines 816 823) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,393 INFO L854 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,393 INFO L854 garLoopResultBuilder]: At program point L784-1(lines 765 789) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (and (<= 2 ~waterLevel~0) .cse3))) (and (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse3) .cse1 (not (<= 1 |old(~waterLevel~0)|)) .cse2)))) [2021-12-07 01:13:27,393 INFO L858 garLoopResultBuilder]: For program point L718-1(lines 718 724) no Hoare annotation was computed. [2021-12-07 01:13:27,393 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 912) no Hoare annotation was computed. [2021-12-07 01:13:27,393 INFO L858 garLoopResultBuilder]: For program point L908-2(lines 908 912) no Hoare annotation was computed. [2021-12-07 01:13:27,394 INFO L854 garLoopResultBuilder]: At program point L450(lines 445 452) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,394 INFO L858 garLoopResultBuilder]: For program point L467(lines 467 471) no Hoare annotation was computed. [2021-12-07 01:13:27,394 INFO L854 garLoopResultBuilder]: At program point L467-2(lines 463 474) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,394 INFO L858 garLoopResultBuilder]: For program point L711-1(lines 710 729) no Hoare annotation was computed. [2021-12-07 01:13:27,394 INFO L858 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2021-12-07 01:13:27,394 INFO L858 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2021-12-07 01:13:27,394 INFO L854 garLoopResultBuilder]: At program point L914(lines 899 917) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,394 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 707 730) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,394 INFO L854 garLoopResultBuilder]: At program point L559(lines 554 562) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,394 INFO L858 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2021-12-07 01:13:27,395 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2021-12-07 01:13:27,395 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2021-12-07 01:13:27,395 INFO L854 garLoopResultBuilder]: At program point L427-1(lines 419 443) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (and (<= 2 ~waterLevel~0) .cse5 .cse4 (<= 2 |timeShift_getWaterLevel_#res#1|) (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse5))) (and (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 .cse1 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (and .cse1 .cse4) .cse2 (not (<= 1 |old(~waterLevel~0)|)) .cse3) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) (= |timeShift_getWaterLevel_#res#1| 1)))))) [2021-12-07 01:13:27,395 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 449) no Hoare annotation was computed. [2021-12-07 01:13:27,395 INFO L854 garLoopResultBuilder]: At program point L840(lines 835 843) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,395 INFO L858 garLoopResultBuilder]: For program point L577(line 577) no Hoare annotation was computed. [2021-12-07 01:13:27,395 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 566 595) no Hoare annotation was computed. [2021-12-07 01:13:27,395 INFO L861 garLoopResultBuilder]: At program point L576-2(lines 576 590) the Hoare annotation is: true [2021-12-07 01:13:27,395 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 566 595) the Hoare annotation is: true [2021-12-07 01:13:27,395 INFO L861 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: true [2021-12-07 01:13:27,395 INFO L858 garLoopResultBuilder]: For program point L572-1(line 572) no Hoare annotation was computed. [2021-12-07 01:13:27,396 INFO L861 garLoopResultBuilder]: At program point L591(lines 566 595) the Hoare annotation is: true [2021-12-07 01:13:27,396 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-12-07 01:13:27,396 INFO L858 garLoopResultBuilder]: For program point L580(lines 580 584) no Hoare annotation was computed. [2021-12-07 01:13:27,396 INFO L861 garLoopResultBuilder]: At program point L580-1(lines 580 584) the Hoare annotation is: true [2021-12-07 01:13:27,396 INFO L854 garLoopResultBuilder]: At program point L923(lines 918 925) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-12-07 01:13:27,396 INFO L854 garLoopResultBuilder]: At program point L985(lines 936 986) the Hoare annotation is: false [2021-12-07 01:13:27,396 INFO L854 garLoopResultBuilder]: At program point L696(lines 691 699) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 01:13:27,396 INFO L854 garLoopResultBuilder]: At program point L688(lines 684 690) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 01:13:27,396 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-07 01:13:27,396 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-07 01:13:27,396 INFO L858 garLoopResultBuilder]: For program point L957(lines 957 963) no Hoare annotation was computed. [2021-12-07 01:13:27,396 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-07 01:13:27,397 INFO L858 garLoopResultBuilder]: For program point L957-1(lines 957 963) no Hoare annotation was computed. [2021-12-07 01:13:27,397 INFO L854 garLoopResultBuilder]: At program point L982(lines 937 984) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-12-07 01:13:27,397 INFO L854 garLoopResultBuilder]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-12-07 01:13:27,397 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 659) no Hoare annotation was computed. [2021-12-07 01:13:27,397 INFO L858 garLoopResultBuilder]: For program point L652-2(lines 652 659) no Hoare annotation was computed. [2021-12-07 01:13:27,397 INFO L854 garLoopResultBuilder]: At program point L681(lines 677 683) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 01:13:27,397 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-07 01:13:27,397 INFO L861 garLoopResultBuilder]: At program point L636(lines 629 638) the Hoare annotation is: true [2021-12-07 01:13:27,397 INFO L861 garLoopResultBuilder]: At program point L661(lines 642 664) the Hoare annotation is: true [2021-12-07 01:13:27,397 INFO L858 garLoopResultBuilder]: For program point L975(lines 975 979) no Hoare annotation was computed. [2021-12-07 01:13:27,397 INFO L854 garLoopResultBuilder]: At program point L975-2(lines 967 980) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-12-07 01:13:27,398 INFO L858 garLoopResultBuilder]: For program point L938(lines 937 984) no Hoare annotation was computed. [2021-12-07 01:13:27,398 INFO L858 garLoopResultBuilder]: For program point L967(lines 967 980) no Hoare annotation was computed. [2021-12-07 01:13:27,398 INFO L854 garLoopResultBuilder]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-12-07 01:13:27,398 INFO L861 garLoopResultBuilder]: At program point L988(lines 927 992) the Hoare annotation is: true [2021-12-07 01:13:27,398 INFO L858 garLoopResultBuilder]: For program point L947(lines 947 953) no Hoare annotation was computed. [2021-12-07 01:13:27,398 INFO L858 garLoopResultBuilder]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2021-12-07 01:13:27,398 INFO L854 garLoopResultBuilder]: At program point L625(lines 621 627) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 01:13:27,398 INFO L858 garLoopResultBuilder]: For program point L939(lines 939 943) no Hoare annotation was computed. [2021-12-07 01:13:27,398 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 739 763) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2021-12-07 01:13:27,398 INFO L854 garLoopResultBuilder]: At program point L795(lines 790 797) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (<= 2 ~waterLevel~0)) [2021-12-07 01:13:27,398 INFO L854 garLoopResultBuilder]: At program point L504(lines 499 507) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) [2021-12-07 01:13:27,399 INFO L854 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2021-12-07 01:13:27,399 INFO L858 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2021-12-07 01:13:27,399 INFO L858 garLoopResultBuilder]: For program point L806(lines 806 812) no Hoare annotation was computed. [2021-12-07 01:13:27,399 INFO L854 garLoopResultBuilder]: At program point L806-2(lines 799 815) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (<= 2 ~waterLevel~0)) [2021-12-07 01:13:27,399 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 550) no Hoare annotation was computed. [2021-12-07 01:13:27,399 INFO L854 garLoopResultBuilder]: At program point L895(lines 880 898) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse6 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse6)) (.cse2 (and .cse4 .cse5 .cse3 .cse6 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1|)))) (and (or .cse0 .cse1 .cse2 (not .cse3)) (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) .cse2 (and .cse4 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1| 0)) .cse5 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)))))) [2021-12-07 01:13:27,399 INFO L854 garLoopResultBuilder]: At program point L831(lines 824 834) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) [2021-12-07 01:13:27,399 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2021-12-07 01:13:27,399 INFO L858 garLoopResultBuilder]: For program point L889(lines 889 893) no Hoare annotation was computed. [2021-12-07 01:13:27,399 INFO L858 garLoopResultBuilder]: For program point L889-2(lines 889 893) no Hoare annotation was computed. [2021-12-07 01:13:27,400 INFO L854 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1| 0)) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0))))) [2021-12-07 01:13:27,400 INFO L858 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2021-12-07 01:13:27,400 INFO L858 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2021-12-07 01:13:27,400 INFO L854 garLoopResultBuilder]: At program point L549(lines 540 553) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (and .cse2 .cse3)) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 (not .cse3))))) [2021-12-07 01:13:27,400 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 475 486) no Hoare annotation was computed. [2021-12-07 01:13:27,400 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 475 486) no Hoare annotation was computed. [2021-12-07 01:13:27,400 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 475 486) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-07 01:13:27,402 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:13:27,403 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:13:27,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:13:27 BoogieIcfgContainer [2021-12-07 01:13:27,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:13:27,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:13:27,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:13:27,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:13:27,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:13:20" (3/4) ... [2021-12-07 01:13:27,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 01:13:27,434 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-07 01:13:27,435 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-07 01:13:27,435 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-07 01:13:27,435 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-07 01:13:27,435 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-07 01:13:27,435 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-07 01:13:27,443 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2021-12-07 01:13:27,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-07 01:13:27,445 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-07 01:13:27,445 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-07 01:13:27,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 01:13:27,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 01:13:27,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 01:13:27,470 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2021-12-07 01:13:27,471 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0) || !(1 == systemActive)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) [2021-12-07 01:13:27,472 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && (((!(1 == systemActive) || (((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) [2021-12-07 01:13:27,472 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((\result == 0 && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && 1 <= tmp) && tmp == 0) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0) || !(1 == systemActive)) || ((((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) [2021-12-07 01:13:27,472 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2021-12-07 01:13:27,472 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) [2021-12-07 01:13:27,473 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2021-12-07 01:13:27,473 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2021-12-07 01:13:27,473 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= waterLevel)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && 1 <= \result) && 1 <= tmp___0)) || (((((pumpRunning == \old(pumpRunning) && !(tmp == 0)) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0)) [2021-12-07 01:13:27,473 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2021-12-07 01:13:27,473 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) [2021-12-07 01:13:27,474 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel) [2021-12-07 01:13:27,474 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel) [2021-12-07 01:13:27,474 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel [2021-12-07 01:13:27,474 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel [2021-12-07 01:13:27,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 01:13:27,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:13:27,506 INFO L158 Benchmark]: Toolchain (without parser) took 7436.91ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 140.0MB in the beginning and 64.8MB in the end (delta: 75.2MB). Peak memory consumption was 112.9MB. Max. memory is 16.1GB. [2021-12-07 01:13:27,507 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 58.9MB in the beginning and 58.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:13:27,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.18ms. Allocated memory is still 163.6MB. Free memory was 140.0MB in the beginning and 121.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-07 01:13:27,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.96ms. Allocated memory is still 163.6MB. Free memory was 121.1MB in the beginning and 118.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-07 01:13:27,508 INFO L158 Benchmark]: Boogie Preprocessor took 29.55ms. Allocated memory is still 163.6MB. Free memory was 118.4MB in the beginning and 116.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:13:27,508 INFO L158 Benchmark]: RCFGBuilder took 400.71ms. Allocated memory is still 163.6MB. Free memory was 116.9MB in the beginning and 100.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-07 01:13:27,509 INFO L158 Benchmark]: TraceAbstraction took 6571.81ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 99.5MB in the beginning and 72.1MB in the end (delta: 27.4MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2021-12-07 01:13:27,509 INFO L158 Benchmark]: Witness Printer took 80.83ms. Allocated memory is still 199.2MB. Free memory was 72.1MB in the beginning and 64.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-07 01:13:27,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 58.9MB in the beginning and 58.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.18ms. Allocated memory is still 163.6MB. Free memory was 140.0MB in the beginning and 121.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.96ms. Allocated memory is still 163.6MB. Free memory was 121.1MB in the beginning and 118.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.55ms. Allocated memory is still 163.6MB. Free memory was 118.4MB in the beginning and 116.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 400.71ms. Allocated memory is still 163.6MB. Free memory was 116.9MB in the beginning and 100.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6571.81ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 99.5MB in the beginning and 72.1MB in the end (delta: 27.4MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. * Witness Printer took 80.83ms. Allocated memory is still 199.2MB. Free memory was 72.1MB in the beginning and 64.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 449]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 14, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2066 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2044 mSDsluCounter, 4489 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3117 mSDsCounter, 379 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1921 IncrementalHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 379 mSolverCounterUnsat, 1372 mSDtfsCounter, 1921 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 385 SyntacticMatches, 6 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=567occurred in iteration=13, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 213 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 1337 PreInvPairs, 1426 NumberOfFragments, 1081 HoareAnnotationTreeSize, 1337 FomulaSimplifications, 1267 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 42 FomulaSimplificationsInter, 3735 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 927 NumberOfCodeBlocks, 927 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 992 ConstructedInterpolants, 0 QuantifiedInterpolants, 1903 SizeOfPredicates, 8 NumberOfNonLiveVariables, 985 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 264/294 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: (((((((((((((\result == 0 && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && 1 <= tmp) && tmp == 0) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0) || !(1 == systemActive)) || ((((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 799]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel - InvariantResult [Line: 642]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= waterLevel)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && 1 <= \result) && 1 <= tmp___0)) || (((((pumpRunning == \old(pumpRunning) && !(tmp == 0)) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0)) - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && (((!(1 == systemActive) || (((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) - InvariantResult [Line: 621]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 499]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel) - InvariantResult [Line: 899]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: (((((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0) || !(1 == systemActive)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel) - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) - InvariantResult [Line: 684]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2021-12-07 01:13:27,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199618ba-561f-480b-8e9a-a144b801fe7f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE